scripts: add fuzzer helper script

scripts/fuzz.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+CWD="$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")"
+PROJECT_DIR=$(realpath "${CWD}/../")
+
+in=$(mktemp -u) || exit $?
+out=$(mktemp -u) || exit $?
+
+mkfifo ${in} ${out} || exit $?
+
+if [[ -z "$FUZZER_TIMEOUT_S" ]]; then
+    FUZZER_TIMEOUT_S=600
+fi
+   
+
+${PROJECT_DIR}/scripts/atom.py <${in} >${out} \
+    | ${PROJECT_DIR}/build/fuzz/atom/parser/fuzzer -max_total_time=$FUZZER_TIMEOUT_S >${in} <${out} \
+                                      ${PROJECT_DIR}/build/atom_parser_fuzzer_corpus \
+                                      -only_ascii=1 \
+                                      -timeout=2 \
+                                      -max_total_time=$FUZZER_TIMEOUT_S \
+                                      -timeout_exitcode=0 \
+                                      "$@"